In the urea cycle the nitrogen atoms originate from ________.

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#Question id: 5566

#SCPH01 Biochemistry

In some rare salamander species, all individuals are females. Reproduction relies on those females having access to sperm from males of another species. However, the resulting embryos receive no genetic contribution from the males. Why do you think sperm are necessary for reproduction?

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#Question id: 2061

#I Life Science/ Life Sciences Group – I-V

Which of the following types of molecules are hydrophilic and therefore excluded from the hydrophobic portion of the phospholipid bilayer?

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#Question id: 1677

#SCPH05 I Biotechnology

The Ly49A receptor on NK cells does NOT:

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#Question id: 4836

#SCPH12 I Genetics

If gene frequency between genes a and c is 2%; b and c is 13%; b and d 4%; a and b 15%; c and d 17 and a and d19%. The sequence of genes in a chromosome is

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#Question id: 7700

#SCPH06 I Botany

The legless condition that is observed in several groups of extant reptiles is the result of ________.